Although it takes Willow Garage's PR2 58 minutes to complete its mission, it managed to barrel through 8 doors—maneuvering itself around junk scattered all over an office space—and find 9 different electrical outlets to recharge itself. If all the outlets were being used, I wonder if the PR2 is smart enough to figure…

One way to increase the potency of Bluetooth headsets as social poison is to wear them while affecting strange, inexplicable and constant head movement. With Plantronics' new movement-charged headset design, that may become a necessity. The device relies on a small flywheel that, when rotated in a magnetic field,…

It's not that my smoke alarm is hard to reach, or that I don't have a spare 9V battery around. But doesn't this doo-hickey make a lot more sense? Plant the alarm in a light socket, then screw the bulb in. Everytime the light is turned on the alarm charges. Flip the lightswitch twice to test the alarm, and three…